MSSQL: Unterschied zwischen den Versionen

Version vom 23. August 2014, 21:05 Uhr

MSSQL

Backupscript (Procedure)

Backupscript sichert alle Datenbanken.

      ALTER PROCEDURE BackupDatabase
      AS
      DECLARE @name VARCHAR(256) -- database name  
      DECLARE @path VARCHAR(256) -- path for backup files  
      DECLARE @fileName VARCHAR(256) -- filename for backup  
      DECLARE @fileDate VARCHAR(20) -- used for file name
      DECLARE @recovery_model_desc VARCHAR(50) -- check recovery model
      
      -- specify database backup directory
      SET @path = '\\servername.domain\BackupMSSQL2\I0\' 
      
      -- specify filename format
      SELECT @fileDate = CONVERT(VARCHAR(20),GETDATE(),112) 
      
      DECLARE db_cursor CURSOR FOR  
      SELECT name 
      FROM master.dbo.sysdatabases 
      WHERE name NOT IN ('tempdb')  -- exclude these databases
      
      OPEN db_cursor
      
      FETCH NEXT FROM db_cursor INTO @name   
      WHILE @@FETCH_STATUS = 0   
      BEGIN   
             SET @fileName = @path + @name + '_' + @fileDate + '.BAK'  
             BACKUP DATABASE @name TO DISK = @fileName
      
             SELECT @recovery_model_desc = recovery_model_desc FROM sys.databases WHERE name = @name
             IF @recovery_model_desc = 'FULL'
             BEGIN        
                    SET @fileName = @path + @name + '_' + @fileDate + '.LOG'  
                    BACKUP LOG @name TO DISK = @fileName 
             END
             FETCH NEXT FROM db_cursor INTO @name   
      END   
      
      CLOSE db_cursor   
      DEALLOCATE db_cursor

Truncate Logfile (Procedure)

      DECLARE c CURSOR FOR SELECT database_id, name, recovery_model_desc FROM sys.databases -- WHERE name='sharepoint_config'
      DECLARE @dbname VARCHAR(1024)
      DECLARE @rmod VARCHAR(1024)
      DECLARE @id INT
      DECLARE @lfile VARCHAR(1024) 
      OPEN c

      FETCH NEXT FROM c INTO @id, @dbname, @rmod WHILE @@FETCH_STATUS = 0
      BEGIN
             IF @rmod = 'FULL'
             BEGIN
                    SET @lfile = (SELECT name FROM sys.master_files WHERE database_id = @id AND type=1)
                    PRINT @lfile
                    EXEC('ALTER DATABASE [' + @dbname + '] SET RECOVERY SIMPLE')
                    EXEC('USE ['+@dbname+']; DBCC SHRINKFILE(['+@lfile+'], 1)')
                    EXEC('ALTER DATABASE [' + @dbname + '] SET RECOVERY FULL	')
             END ELSE
             IF @rmod = 'SIMPLE'
             BEGIN
                    SET @lfile = (SELECT name FROM sys.master_files WHERE database_id = @id AND type=1)
                    PRINT @lfile
                    EXEC('USE ['+@dbname+']; DBCC SHRINKFILE(['+@lfile+'], 1)')
             END
             FETCH NEXT FROM c INTO @id, @dbname,@rmod
      END
      
      CLOSE c
      DEALLOCATE c